CN219584280U - Auxiliary frame mounting structure and vehicle - Google Patents

Abstract

The utility model provides a subframe mounting structure and a vehicle, wherein the subframe mounting structure comprises a mounting box, a mounting bracket, a supporting plate and a nut sleeve which are arranged at the bottom of a vehicle body floor; the mounting box is connected with the floor of the vehicle body and is formed into a mounting cavity in a surrounding manner; the mounting bracket is positioned in the mounting cavity, the mounting bracket is connected with the mounting box, a mounting space is formed between the mounting bracket and the mounting box, the nut sleeve penetrates through the mounting space, one end of the nut sleeve is connected with the mounting box, and the other end of the nut sleeve is connected with the mounting bracket; the backup pad is located the installation space to locate on the mounting box, the backup pad links to each other with the lateral wall of nut cover. According to the auxiliary frame mounting structure, the mounting bracket is arranged in the mounting cavity of the mounting box, the nut sleeve is connected between the mounting bracket and the mounting box, and the supporting plate is connected with the side wall of the nut sleeve, so that the mounting strength of the nut sleeve on the mounting box is improved, and the mounting strength of the auxiliary frame is improved.

Description

Auxiliary frame mounting structure and vehicle

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to an auxiliary frame mounting structure. Meanwhile, the utility model also relates to a vehicle with the auxiliary frame mounting structure.

Background

In the prior art, the installation of the nut sleeve at the rear part of the front auxiliary frame is generally carried out in the following two modes, and the first structural mode is that the rear mounting bracket of the front auxiliary frame is directly welded on the inner connecting plate at the rear section of the longitudinal beam, and the nut sleeve is installed on the rear mounting bracket of the front auxiliary frame and the inner connecting plate at the rear section of the longitudinal beam. The second structural mode is that a longitudinal beam rear section inner connecting plate is connected to a longitudinal beam rear section inner connecting plate, and a front auxiliary frame rear mounting bracket is welded to the longitudinal beam rear section inner connecting plate and the longitudinal beam rear section inner connecting plate.

In the installation mode of the two front auxiliary frame rear nut sleeves, the front auxiliary frame rear installation nut sleeve, the longitudinal beam rear section inner connecting plate and the front auxiliary frame rear installation support are in a direct welding mode, the welded local plane is connected, and the welding spot structure strength is not enough. In addition, the front auxiliary frame rear mounting bracket is weak in self structural strength, cannot provide enough structure for the front auxiliary frame nut sleeve mounting point after being directly welded with the nut sleeve, and is easy to cause structural damage after being welded. In addition, the internal connection self structural strength in longeron back end is weak, adopts the sheet metal construction of individual layer generally, can't provide enough strong mounting structure after with sub vehicle frame rear portion erection point spot welding, easily leads to causing performance defect because of structural strength is not enough.

Disclosure of Invention

In view of the above, the present utility model aims to provide a subframe mounting structure to improve the mounting strength of a subframe.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the auxiliary frame mounting structure comprises a mounting box, a mounting bracket, a supporting plate and a nut sleeve, wherein the mounting box, the mounting bracket, the supporting plate and the nut sleeve are arranged at the bottom of a vehicle body floor; the mounting box is connected with the vehicle body floor and is formed into a mounting cavity in a surrounding manner; the mounting bracket is positioned in the mounting cavity, the mounting bracket is connected with the mounting box, a mounting space is formed between the mounting bracket and the mounting box, the nut sleeve penetrates through the mounting space, one end of the nut sleeve is connected with the mounting box, and the other end of the nut sleeve is connected with the mounting bracket; the supporting plate is located in the installation space and arranged on the installation box, and the supporting plate is connected with the side wall of the nut sleeve.

Further, the support plate is provided with a protrusion which is formed on the nut sleeve, and the protrusion is connected with the side wall of the nut sleeve.

Further, the support plate includes a body portion and a cuff portion; the body part is connected with the mounting box, and the flanging part is provided with the bulge.

Further, the flange portion has a long hole, the long hole is located on the protrusion, and the long hole extends along the axial direction of the nut sleeve.

Further, the mounting box comprises a mounting plate and a reinforcing plate which are connected together, and at least part of the reinforcing plate is laminated with the mounting plate; the nut sleeve is connected to the lamination part of the mounting plate and the reinforcing plate.

Further, the support plate is connected with the mounting plate, and the support plate is connected with the reinforcing plate.

Further, the mounting bracket has a body portion, and a leg portion connected to the body portion; the main body part is connected with the side wall of the mounting box, and the branch leg part is connected with the bottom wall of the mounting box.

Further, the mounting bracket is provided with a hole flanging, and one end of the nut sleeve is connected in the hole flanging.

Compared with the prior art, the utility model has the following advantages:

according to the auxiliary frame mounting structure, the mounting bracket is arranged in the mounting cavity of the mounting box, the nut sleeve is connected between the mounting bracket and the mounting box, the supporting plate is arranged in the mounting space between the mounting bracket and the mounting box and is connected with the side wall of the nut sleeve, so that the mounting strength of the nut sleeve on the mounting box is improved, the auxiliary frame is convenient to mount, and meanwhile, the mounting strength of the auxiliary frame is improved, and the reliability of a vehicle is improved.

Secondly, the bulge in the supporting plate is formed on the nut sleeve along with the shape, so that the effect of fixing the nut sleeve can be achieved, meanwhile, the supporting plate is connected with the side wall of the nut sleeve through the bulge, the longitudinal welding connection force of the nut sleeve can be increased, and the installation strength of the nut sleeve is improved. The backup pad has body portion and turn-ups part, not only can make the backup pad have better structural strength, also is convenient for the backup pad to be connected with the nut cover simultaneously to do benefit to further improvement nut cover's installation strength. The strip holes positioned on the protrusions are formed in the flanging part, so that the welding points between the flanging part and the nut sleeve can be effectively prevented from being torn by force. The mounting box comprises a mounting plate and a reinforcing plate, a box-shaped structure is convenient to form, the nut sleeve is connected to the lamination part of the mounting plate and the reinforcing plate, and the connection strength between the nut sleeve and the mounting box is improved.

And the supporting plate is connected with the mounting plate, and the supporting plate and the reinforcing plate are connected in a mode that the mounting strength of the supporting plate in the mounting box is improved, so that the mounting strength of the nut sleeve on the mounting box is improved. The mounting bracket is connected with the side wall of the mounting box through the main body part, and the supporting leg part is connected with the bottom wall of the mounting box, so that the connection strength of the mounting bracket on the mounting box is improved, and the mounting space is formed. And the hole flanging on the mounting bracket is beneficial to improving the connection strength between the nut sleeve and the mounting bracket.

Further, another object of the present utility model is to provide a vehicle provided with the sub-frame mounting structure as described above.

Further, the mounting box is arranged on the inner side of the rear section of the longitudinal beam corresponding to the torsion box, and the mounting box is connected with the rear section of the longitudinal beam.

According to the vehicle, the auxiliary frame mounting structure is arranged, so that the mounting strength and the reliability in use of the auxiliary frame are improved, and the safety of the vehicle is improved. In addition, the mounting box is connected to the inner side of the rear section of the longitudinal beam, so that the strength of the mounting structure of the auxiliary frame is improved, and the force transmission effect of the front part of the vehicle can be improved through cooperation with the torsion box, and the safety of the vehicle is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural view of a subframe mounting structure according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic structural view of a subframe mounting structure according to an embodiment of the present utility model at a second view angle;

fig. 3 is a schematic structural view of a subframe mounting structure according to an embodiment of the present utility model at a third view angle;

fig. 4 is a schematic structural view of a subframe mounting structure according to an embodiment of the present utility model at a fourth view angle;

fig. 5 is a schematic structural view of a mounting bracket and a support plate in a connected state according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 7 is a sectional view in the direction B-B in FIG. 1;

fig. 8 is a schematic view showing a structure of a mounting box and a support plate in a coupled state according to an embodiment of the present utility model;

FIG. 9 is a schematic view showing a structure of a mounting box and a nut sleeve in a coupled state according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a mounting plate according to an embodiment of the present utility model;

FIG. 11 is a schematic structural view of a reinforcing plate according to an embodiment of the present utility model;

fig. 12 is a schematic structural view of a support plate according to an embodiment of the utility model;

FIG. 13 is a schematic view illustrating a structure of a mounting bracket according to an embodiment of the utility model;

fig. 14 is a schematic structural view of a subframe mounting structure, a torsion box and a rear section of a side member according to a second embodiment of the present utility model;

fig. 15 is a schematic structural diagram of an installation structure of a subframe, a torsion box and a rear section of a side member according to a second embodiment of the present utility model.

Reference numerals illustrate:

1. a mounting plate; 2. a reinforcing plate; 3. a support plate; 4. a mounting bracket; 5. a nut sleeve; 6. the rear section of the longitudinal beam; 7. a torsion box;

100. a mounting box; 200. a mounting cavity; 300. an installation space;

101. a first mounting surface; 102. a second connecting flanging; 103. a connection hole; 104. a first connecting flange; 106. a first bottom portion; 107. a first peripheral portion; 108. a third reinforcing rib;

201. a second mounting surface; 202. a second bottom portion; 203. a second peripheral portion;

301. a body portion; 302. a burring part; 303. a protrusion; 304. a slit hole; 305. a first reinforcing rib;

401. a main body portion; 402. a first leg portion; 404. a second reinforcing rib; 405. hole flanging; 406. a third connecting flanging; 407. a second leg portion; 408. fourth connecting flanging; 409. and fifth connecting flanging.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, the terms "upper, lower, left, right, front, and rear" used in the present embodiment are defined with reference to the up-down direction, the left-right direction, and the front-rear direction of the vehicle. Wherein the up-down direction of the vehicle, i.e., the height direction of the vehicle, the front-back direction of the vehicle, i.e., the longitudinal direction of the vehicle, and the left-right direction of the vehicle, i.e., the width direction of the vehicle. In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a subframe mounting structure that includes, in its entire constitution, a mounting box 100 provided at the bottom of a vehicle body floor, a mounting bracket 4, a support plate 3, and a nut sleeve 5. The mounting box 100 is connected to a vehicle body floor and is formed with a mounting cavity 200 in a surrounding manner. The mounting bracket 4 is located in the mounting cavity 200, and the mounting bracket 4 is connected to the mounting box 100 with a mounting space 300 formed therebetween. The nut case 5 penetrates the installation space 300, one end of the nut case 5 is connected to the installation box 100, and the other end is connected to the installation bracket 4. The support plate 3 is located in the installation space 300 and is provided on the installation box 100, and the support plate 3 is connected with the sidewall of the nut housing 5.

Based on the above general description, one exemplary structure of the subframe mounting structure described in the present embodiment is shown in fig. 1 to 4, which is particularly suitable for mounting the rear portion of the subframe. As a preferred embodiment, there are two nut sleeves 5 for mounting the subframe, and the two nut sleeves 5 are provided on the mounting box 100 and the mounting bracket 4 at intervals in the front-rear direction of the entire vehicle. Of course, the number of the nut sleeves 5 can also be increased or decreased adaptively according to the use requirement.

The mounting box 100 in this embodiment is provided with openings protruding downward with respect to the floor of the vehicle body, and the top of the mounting box 100 and the side facing the outside of the vehicle are both provided with openings. The vehicle body floor is used for blocking the opening at the top of the mounting box 100, and the rear longitudinal beam section 6 is used for blocking the opening of the mounting box 100 arranged towards the outside of the vehicle, so that the mounting cavity 200 is formed. Here, the mounting box 100 has a simple structure, is convenient to arrange and implement, and has good use effect.

As a preferred embodiment, the mounting box 100 includes a mounting plate 1 and a reinforcing plate 2 connected together to facilitate molding of a box-like structure and to facilitate improvement of molding accuracy and to ensure welding accuracy. At least part of the reinforcing plate 2 is laminated on the mounting plate 1, and the nut bush 5 is connected to a portion of the mounting plate 1 laminated on the reinforcing plate 2. The support plate 3 is connected to the mounting plate 1, and the support plate 3 is connected to the reinforcing plate 2. In a specific structure, as shown in fig. 8 and 9, the mounting plate 1 is extended from front to back in the front-rear direction of the entire vehicle, and the reinforcing plate 2 is fastened to the bottom of the mounting plate 1. The mounting plate 1 has a first bottom portion 106 at the bottom and a first peripheral portion 107 connected to the first bottom portion 106 and arranged circumferentially. The reinforcing plate 2 has a second bottom portion 202 at the bottom, and a second peripheral portion 203 connected to the periphery of the second bottom portion 202.

As shown in fig. 3, 10 and 11, the second bottom portion 202 is attached to the lower surface of the first bottom portion 106, and forms the bottom of the mounting box 100, and the first peripheral portion 107 and the second peripheral portion 203 are connected to each other, which forms the periphery of the mounting box 100. And the first and second peripheral portions 107 and 203 are provided at their top edges with outwardly turned first connecting flanges 104, respectively, and the mounting box 100 is welded to the vehicle body floor via the first connecting flanges 104. A second connection flange 102 is provided on the reinforcing plate 2 and the mounting plate 1 on the side arranged towards the rear section 6 of the longitudinal beam, so as to realize the connection between the mounting box 100 and the rear section 6 of the longitudinal beam.

Still referring to fig. 10 and 11, the first bottom portion 106 has a first mounting surface 101 disposed horizontally, the second bottom portion 202 has a second mounting surface 201 stacked on the bottom of the first mounting surface 101, and connection holes 103 disposed corresponding to the bottom ends of the nut cases 5 are provided through the first mounting surface 101 and the second mounting surface 201, and the bottom ends of the nut cases 5 pass through the connection holes 103 and are welded to the mounting box 100. In this embodiment, connect at the range upon range of position of mounting panel 1 and reinforcing plate 2 through nut cover 5, compare in prior art the scheme of nut cover 5's bottom and one deck sheet metal construction only, can improve the joint strength of nut cover 5 bottom to can promote the installation strength of sub vehicle frame.

As a preferred embodiment, as shown in fig. 8 and 12, the support plate 3 is provided obliquely from front to back into the vehicle in the front-rear direction of the whole vehicle to coincide with the arrangement of the two nut cases 5, thereby facilitating connection with the two nut cases 5. The support plate 3 in this embodiment has a protrusion 303 formed along with the nut case 5, and the protrusion 303 is connected to a side wall of the nut case 5. Since the nut housing 5 is columnar, the support plate 3 is protruded around the outer periphery of the nut housing 5, so that the boss 303 is arc-shaped. The arc-shaped bulge 303 not only can play a role in fixing the nut sleeve 5, but also is connected with the side wall of the nut sleeve 5 through the bulge 303, so that the connection effect of the nut sleeve 5 is further improved. The protrusions 303 in the present embodiment are preferably provided to extend in the axial direction of the nut case 5 to further improve the longitudinal welding connection force of the nut case 5, which is advantageous in improving the mounting strength of the nut case 5.

The support plate 3 in this embodiment includes a body portion 301 and a burring portion 302 to provide the support plate 3 with superior structural strength and torsional force while also facilitating the connection of the support plate 3 with the nut housing 5. Here, the support plate 3 has the body portion 301 and the burring portion 302, which not only makes the support plate 3 have a good structural strength, but also facilitates the connection of the support plate 3 and the nut sleeve 5, and facilitates the improvement of the installation strength of the nut sleeve 5. Wherein the body portion 301 is connected to the mounting case 100, and the burring portion 302 is provided with the above-mentioned protrusion 303. As shown in fig. 5 to 7 and 12, the support plate 3 in the present embodiment is "L" -shaped due to the arrangement of the horizontally arranged body portion 301 and the vertically arranged burring portion 302.

In particular, the body portion 301 spans the junction of the first bottom portion 106 and the second bottom portion 202, and the body portion 301 is welded to the upper surfaces of the first bottom portion 106 and the second bottom portion 202, thereby enabling the mounting of the support plate 3 on the bottom of the mounting box 100. By connecting the support plate 3 to the nut case 5 in this manner, the mounting strength of the lower portion of the nut case 5 can be improved. In addition, the burring part 302 is turned up by the edge of the body part 301 and is located at one side of the two nut cases 5. The support plate 3 has a simple structure, is convenient to arrange and implement, and has good connection effect on the nut sleeve 5.

Further, in the present embodiment, the burring portion 302 has an elongated hole 304, and the elongated hole 304 is located on the boss 303 and extends in the axial direction of the nut case 5. By providing the elongated hole 304, the weld joint between the burring portion 302 and the nut sleeve 5 can be effectively prevented from being torn by force. In a specific structure, referring to fig. 10, elongated holes 304 are provided in each boss 303, and are each provided to extend in the axial direction of the nut case 5. The burring 302 is connected to the nut sleeve 5 by welding the elongated hole 304 to the corresponding nut sleeve 5. Here, the long hole 304 has a simple structure, which is advantageous for further improving the connection strength between the support plate 3 and the nut housing 5. In this embodiment, a plurality of first reinforcing ribs 305 are further provided on the body portion 301 and the burring portion 302, respectively, to improve the structural strength and the torsional force of the support plate 3. Of course, the positions, the number, etc. of the first reinforcing ribs 305 can be determined according to the use requirements.

As a preferred embodiment, the mounting bracket 4 has a main body portion 401, and leg portions connected to the main body portion 401. And the leg portions are preferably integrally formed with the body portion 401 and formed with some bending toward the body portion 401 to enhance the structural strength of the mounting bracket 4. Of course, the leg portion and the main body portion 401 may be provided separately, or may be welded to each other. The body portion 401 is connected to the side wall of the mounting case 100, and the leg portions are connected to the bottom wall of the mounting case 100. As shown in fig. 2 and 13, the front end of the main body portion 401 in this embodiment is provided with a third connecting flange 406, which third connecting flange 406 is connected to the first peripheral portion 107. The rear end of the main body portion 401 is overlapped on top of the second peripheral portion 203 and the two are welded to each other.

In the present embodiment, as shown in fig. 13, the leg portions include a first leg portion 402 and a second leg portion 407 which are provided separately on the left and right sides of the main body portion 401. Wherein the bottom end of the first leg portion 402 arranged towards the rear longitudinal beam section 6 has a fourth connection flange 408, which fourth connection flange 408 is welded to the second bottom portion 202 of the reinforcement plate 2 and to the body portion 301 of the support plate 3 for the connection of the first leg to the mounting box 100. The bottom end of the second leg portion 407 of the side of the body portion 401 that is arranged towards the vehicle middle has a fifth connection flange 409, which fifth connection flange 409 is welded to the first bottom portion 106 of the mounting plate 1. Here, the first leg portion 402 and the second leg portion 407 facilitate the formation of the above-described mounting space 300 between the mounting bracket 4 and the mounting box 100. Of course, the number and location of the leg portions may still be determined according to the needs of the user.

To facilitate the strength of the connection between the top end of the nut housing 5 and the mounting bracket 4, the body portion 401 of the mounting bracket 4 has a hole flanging 405 as shown in fig. 13, and one end of the nut housing 5 is connected in the hole flanging 405. The holes 405 are two holes provided corresponding to the tips of the two nut bushes 5. The top end of the nut sleeve 5 passes through the corresponding hole flanging 405 and is connected with the mounting bracket 4 in a welding mode. The hole 405 is simple in structure and is advantageous for improving the connection strength between the mounting bracket 4 and the nut housing 5. In this embodiment, the bottom of nut cover 5 links to each other with mounting panel 1 and reinforcing plate 2 plane welding, and the top of nut cover 5 links to each other with installing support 4 plane welding, and the lateral wall of nut cover 5 links to each other with backup pad 3 welding, so can effectively solve among the prior art nut cover 5 lateral wall and have not had vertical welding point problem, do benefit to the weld strength who increases nut cover 5.

Further, as shown in fig. 10 and 11, a plurality of second reinforcing ribs 404 are further provided on the main body portion 401 to enhance the structural strength of the mounting bracket 4. Third reinforcing ribs 108 may be further provided on the reinforcing plate 2 and the mounting plate 1 to improve the structural strength of the mounting box 100. It will be appreciated that the location, shape, number, etc. of the ribs may be determined according to the needs of the application.

The auxiliary frame mounting structure in this embodiment is through setting up installing support 4 in the installation cavity 200 of mounting box 100, nut cover 5 is connected between installing support 4 and mounting box 100, and backup pad 3 sets up in the installation space 300 between installing support 4 and mounting box 100, and links to each other with the lateral wall of nut cover 5, does benefit to the installation intensity that improves nut cover 5 on mounting box 100, when being convenient for auxiliary frame installation, can also improve auxiliary frame's installation intensity to promote the reliability of vehicle.

Example two

The present embodiment relates to a vehicle provided with the sub-frame mounting structure of the embodiment. The subframe is preferably a front subframe of a vehicle, and the subframe mounting structure is preferably used for mounting a rear portion of the front subframe, and the front portion mounting structure of the front subframe can refer to the prior art, and will not be described herein. The auxiliary frame mounting structure is arranged on the vehicle, so that the mounting strength of the auxiliary frame and the reliability in use are improved, and the safety of the vehicle is improved.

As a preferred embodiment, the mounting box 100 is provided inside the trailing section 6 of the side member corresponding to the torsion box 7, and the mounting box 100 is connected to the trailing section 6 of the side member. As one structural example, a mounting structure of a front sub-frame on the left side of a vehicle is shown in fig. 14 and 15. In order to highlight the subframe mounting structure in this embodiment, only a partial structure of the trailing end 6 of the side member is schematically shown in the drawings and figures.

The torsion box 7 in this embodiment is located outside the rear section 6 of the longitudinal beam, connects the rear section 6 of the longitudinal beam and the threshold beam, and is a key force transmission member in the front of the vehicle, playing an important role in connection and force transmission. The mounting box 100 and the torsion box 7 are arranged on the inner side and the outer side of the rear section 6 of the longitudinal beam, are both box body structures, and are matched with each other, so that the force transmission effect of the front part of the vehicle is improved, and the safety of the vehicle is further improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. An auxiliary frame mounting structure, its characterized in that:

comprises a mounting box (100), a mounting bracket (4), a supporting plate (3) and a nut sleeve (5) which are arranged at the bottom of a vehicle body floor;

the mounting box (100) is connected with the vehicle body floor and is formed with a mounting cavity (200) in a surrounding manner;

the mounting bracket (4) is positioned in the mounting cavity (200), the mounting bracket (4) is connected with the mounting box (100) and a mounting space (300) is formed between the mounting bracket and the mounting box, the nut sleeve (5) penetrates through the mounting space (300), one end of the nut sleeve (5) is connected with the mounting box (100), and the other end of the nut sleeve is connected with the mounting bracket (4);

the supporting plate (3) is located in the installation space (300) and arranged on the installation box (100), and the supporting plate (3) is connected with the side wall of the nut sleeve (5).

2. The subframe mounting structure as claimed in claim 1, wherein:

the support plate (3) has a protrusion (303) formed along with the nut case (5), and the protrusion (303) is connected to a side wall of the nut case (5).

3. The subframe mounting structure as claimed in claim 2, wherein:

the support plate (3) comprises a body portion (301) and a cuff portion (302);

the body portion (301) is connected with the mounting box (100), and the flange portion (302) is provided with the boss (303).

4. A subframe mounting structure as claimed in claim 3, wherein:

the burring part (302) has an elongated hole (304), the elongated hole (304) is located on the boss (303), and the elongated hole (304) extends in the axial direction of the nut sleeve (5).

5. The subframe mounting structure as claimed in claim 1, wherein:

the mounting box (100) comprises a mounting plate (1) and a reinforcing plate (2) which are connected together, wherein at least part of the reinforcing plate (2) is laminated with the mounting plate (1);

the nut sleeve (5) is connected to the lamination part of the mounting plate (1) and the reinforcing plate (2).

6. The subframe mounting structure as claimed in claim 5, wherein:

the supporting plate (3) is connected with the mounting plate (1), and the supporting plate (3) is connected with the reinforcing plate (2).

7. The subframe mounting structure as claimed in claim 6, wherein:

the mounting bracket (4) has a main body portion (401), and a leg portion connected to the main body portion (401);

the main body portion (401) is connected to a side wall of the mounting box (100), and the leg portion is connected to a bottom wall of the mounting box (100).

8. The subframe mounting structure as claimed in any one of claims 1 to 7, wherein:

the mounting bracket (4) is provided with a hole flanging (405), and one end of the nut sleeve (5) is connected in the hole flanging (405).

9. A vehicle, characterized in that:

the sub-frame mounting structure according to any one of claims 1 to 8 is provided on the vehicle.

10. The vehicle according to claim 9, characterized in that:

the mounting box (100) is arranged on the inner side of the rear section (6) of the longitudinal beam corresponding to the torsion box (7), and the mounting box (100) is connected with the rear section (6) of the longitudinal beam.